Lufthansa flight LH-178 had to return and make an emergency landing in Frankfurt, Germany, on May 30th.
The Airbus A321-200 plane took off for Berlin, Germany, but had to return shortly afterwards after it developed an engine problem.
The plane landed uneventfully. All 198 passengers aboard remained unhurt.




Malaysia Airlines flight MH-127 had to reject takeoff from Kuala Lumpur, Malaysia, on May 21st.
United Airlines flight UA-4183 had to return and make an emergency landing in Lexington, Kentucky, on June 12th.